ci: remove py2-rust support
Nobody cares about this very narrow usecase, and py2 support is over by
July 1st. This helps with the CI load, and removes some flakiness.
<table class="logEntry parity{parity}">
<tr>
<th class="label"><span class="age">{date|rfc822date}</span>:</th>
<th class="firstline"><a href="{url|urlescape}rev/{node|short}{sessionvars%urlparameter}">{desc|strip|firstline|escape|nonempty}</a></th>
</tr>
<tr>
<th class="revision">revision {filerev}:</th>
<td class="node">
<a href="{url|urlescape}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{node|short}</a>
<a href="{url|urlescape}diff/{node|short}/{file|urlescape}{sessionvars%urlparameter}">(diff)</a>
<a href="{url|urlescape}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}">(annotate)</a>
</td>
</tr>
{rename%filelogrename}
<tr>
<th class="author">author:</th>
<td class="author">{author|obfuscate}</td>
</tr>
<tr>
<th class="date">date:</th>
<td class="date">{date|rfc822date}</td>
</tr>
</table>